Mortar pe baza de ciment cu consistenta fluida, cu efect expansiv, cu intarire rapida pentru ancorari MAPEI MAPEFILL R

Limba: Romana

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Tip documentatie: Fisa tehnica

Pagina 1 - Mortar pe baza de ciment cu consistenta fluida, cu efect expansiv, cu intarire rapida...

R ll fi e p a M Expansive, quicksetting fluid mortar for fastening purposes WHERE TO USE Precise anchoring of machinery and metallic structures. Mapefill R also has the following properties: • highly impermeable to water; Some typical application examples • Anchoring machine tools by pouring under bedding. • excellent bonding to steel and concrete; • Anchoring of metallic structures. • excellent resistance to mechanical stresses, including dynamic stresses; • Filling rigid joints between concrete elements and precast concrete. • modulus of elasticity and coefficient of thermal expansion similar to those of medium-quality concrete; • Underwall, etc. applications. TECHNICAL CHARACTERISTICS Mapefill R is a pre-blended mortar in powder form, made from high-strength cement, graded aggregates and special additives, including an expansive agent, according to a formula developed in MAPEI’s own research laboratories. When Mapefill R is mixed with water, it becomes a f

Pagina 1-Mortar pe baza de ciment cu consistenta fluida, cu efect expansiv, cu intarire rapida pentru...

Pagina 2 - Mortar pe baza de ciment cu consistenta fluida, cu efect expansiv, cu intarire rapida...

luid mortar without segregation which has the property of flowing even into intricate spaces. Thanks to the special expansive agent, Mapefill R characterised by a total absence of shrinkage in both the plastic phase (UNI 8996 standards) and the hardened phase (UNI 8147 standards) and develops extremely high levels of flexural and compressive strength, even after short periods. • Mapefill R does not contain metallic aggregates or powdered aluminium. RECOMMENDATION • Do not use Mapefill R for repairing structures by casting into formwork (use Mapegrout High-Flow). • Do not use Mapefill R for vertical applications by spraying or with a trowel (use Mapegrout Thixotropic). • Do not add cement or additives to Mapefill R. • Do not add water once the mix has started to set. • Do not use Mapefill R if the sack is damaged or if it has been opened before. • Do not apply Mapefill R if the temperature is lower than +5°C. R ill f pe Ma APPLICATION PROCEDURE Preparation of the subs

Pagina 2-Mortar pe baza de ciment cu consistenta fluida, cu efect expansiv, cu intarire rapida pentru...

Pagina 3 - Mortar pe baza de ciment cu consistenta fluida, cu efect expansiv, cu intarire rapida...

trate • Remove deteriorated concrete and any areas which are at risk of detachment, until a sound, strong substrate is obtained. • Roughen the surface and completely remove all traces of dust, oil, grease, rubble and surface cement laitance. • Saturate the sides of the cavities to be filled with water. Before pouring, wait until all excess water has evaporated off. If necessary, compressed air or a sponge may be used to remove free-standing water. Casting Mapefill R Completed grouting of anchor bolts with Mapefill R Preparation of the mortar Pour 4.25-4.5 litres of water into a cement mixer. Turn the cement mixer on and slowly and continuously add Mapefill R. Mix for 1-2 minutes, remove all the powder which has not blended with the mix from the sides of the mixer and continue mixing for 2-3 minutes, until a fluid, lump-free blend is obtained. Either a mortar mixer or a drill equipped with a mixing attachment may be used according to the amount of material to be prepared. In th

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Pagina 4 - Mortar pe baza de ciment cu consistenta fluida, cu efect expansiv, cu intarire rapida...

is case, make sure air is not entrapped in the mix. We don’t recommend mixing the mortar by hand. Application Pour Mapefill R from one side in a continuous flow, making sure that air comes out of the areas to be filled, which must be at least twice the size of the bars to be anchored. The use of Mapefill R to connect precast concrete elements and for filling rigid joints is recommended for thicknesses of up to 60 mm. It is not necessary to vibrate the mortar. To make filling of tight or intricate spaces easier, help the flow of cement with wooden slats or steel rods. Addition of gravel If cavities larger than those indicated require filling, add 30% by weight of gravel with a maximum diameter of 8-10 mm. Following variations in some of the characteristics, such as workability or strength, we recommend carrying out preliminary tests on site or contacting our Technical Assistance Department. evaporation of the water, which could cause the formation of surface cracks due to plastic shr